Performance Associates, Inc, & ebrary, Inc. (2007). Delivering knock your socks off service (4th ed.). AMACOM, American Management Association.
Chicago-Zitierstil (17. Ausg.)Performance Associates, Inc, und Inc ebrary. Delivering Knock Your Socks off Service. 4th ed. New York: AMACOM, American Management Association, 2007.
MLA-Zitierstil (9. Ausg.)Performance Associates, Inc, und Inc ebrary. Delivering Knock Your Socks off Service. 4th ed. AMACOM, American Management Association, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.